Meditation feels like the prototype to what Reaper has in it's kit. The move is there to be used when the samurai can do literally nothing else but stand looking pretty, so it always feels like a bit of a tacked on skill.
The problem with all the jobs is that they often start out having a good core, and then to make the job feel like it is breaking new limits, they throw on a bunch of extra stuff that does big flashy things, which just amount to some big hit.
Samurai at the core is rotating two buffs, one to increase attack speed and the other to increase damage, while doing combos and either filling up to do a DOT via Higabana or doing a big hit with all three charges. If they just stuck to this game plan and left Kaiten in there the job would have been fine. But then they added in Tsubame-Gaeshi and Shoha on top of balancing Shintens with remembering to always hit Senei.
This has been an eternal problem with their design team. They always add attacks even if the job is doing JUST FINE without them. They want to add them in, because "we got to make this new and fresh" like a pine tree every damn time a new expansion comes out, and then you got the mains either loving it because they only play samurai and basically one other job, and the other people being indifferent or disliking everything.
You'd think removing an ability would net the opposite result, where the mains hate the change and the people who don't main it but play more on and off would think it's great, but it's mostly just silence on one side and the other is grumbling. Again, I'd pin the blame on just over bloating jobs with useless capstone abilities all for the sake of flash and no substance. That's the name of the game of Shadowbringers forward, and I've had my fill of it to be frank.
This isn't to say that they haven't had good things come out of it. Warrior is definitely vastly better than it was in Shadowbringers and Dark Knight is improving as well. But sometimes I just feel like the teams don't really know what is a good game plan or not. If someone came to me and told me to make samurai flashier, would I add a new skill or just upgrade the visuals on the job and boost the potency with a trait? I'd probably have just boosted the potency with a trait and updated the visual effect of some existing capstone.